Use of x-ray microtomography to visualise dynamic adsorption of organic vapour and water vapour on activated carbon |
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Authors: | P Lodewyckx S Blacher A Léonard |
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Institution: | (1) Department of Chemistry, Royal Military Academy, Renaissancelaan 30, B-1000 Brussels, Belgium;(2) Dept. Applied Chemistry, Lab. Chemical Engineering, University of Liège, Sart-Tilman B6, B-4000 Liège, Belgium |
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Abstract: | X-ray microtomography coupled with image analysis was used to quantify the adsorption of vapours on activated carbon beds.
This technique was tested using three different challenges: CCl4, water vapour and a mixture of water- and organic vapour. It is shown that the used technique allows determining the adsorption
front progress in the case of organic vapour and mixture of water and organic vapour whereas the existence of this front was
not so obvious in the case of water vapour. Experimental results obtained for organic vapours were interpreted on the basis
of the Wheeler-Jonas equation: a good agreement was found between experimental and theoretical breakthrough times. |
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Keywords: | Activated carbon Adsorption Tomography Modelling |
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